Passengers said that the large dog went to the bathroom in the plane's aisle as many three times, making people nearby physically ill.

"The second time after the dog pooped they ran out of paper towels, they didn't have anything else. The pilot comes on the radio, 'Hey, we have a situation in the back, we're going to have to emergency land,'" passenger Steve McCall told Inside Edition.

One passenger, Chris Law, documented the ordeal on Twitter.

The flight then made an emergency landing—in part because the smell was so bad that some passenger were getting sick—in Kansas City, where a cleaning crew waiting to clean up the mess.